Electrolysis is carried out in three cells : In cell

Chemistry Electrochemistry General Single Correct MCQ

Published on: August 13, 2026

Electrolysis is carried out in three cells :

In cell

: 1(M) CuSO 4 solution is electrolysed using Pt electrodes. In cell In cell : the pH of the solution is decreased

: 1(M) CuSO 4 solution is electrolysed using Cu electrodes. In cell In cell : the pH of the solution remain/constant

: 1(M) KCl solution is electrolysed using Pt electrodes. Which of the following is/are correct ? In cell : the pH of the solution is increased

All of the given are correct

Text Solution

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The correct answer is:

In cell : Cathode reaction : Cu 2+ + 2e ⎯→ Cu

Anode reaction : H 2 O ⎯→ 2H + + O 2 + 2e

In cell : Cathode reaction : Cu 2+ + 2e ⎯→ Cu

Anode reaction : Cu ⎯→ Cu 2+ + 2e

In cell : Cathode reaction : 2H 2 O + 2e

⎯→ H 2 + 2OH – Anode reaction : 2Cl

– ⎯→ Cl 2 + 2e

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